Hand Grip Apparatus

FIG. 1 is a front perspective view of a hand grip apparatus showing my new design; FIG. 2 is a front side view thereof; FIG. 3 is a back side view thereof; FIG. 4 is a left side view thereof; FIG. 5 is a right side view thereof; FIG. 6 is a bottom view thereof; FIG. 7 is a top view thereof; and, FIG. 8 is front side view of a hand grip apparatus in an environmental use configuration with a person's hand and a baseball bat handle. The broken lines in FIG. 8 that depict the environment of a person's hand and a baseball bat handle form no part of the claimed design.